View source for Copyright notice

The following copyright notice applies to both the text of the book and the software that is provided it.
<blockquote>
These materials are Copyright &copy; 2018&ndash;25 J. M. Spivey.
All rights reserved.

These materials are provided for private study and research within the
doctrine of fair use.  Reproduction, distribution and use in creating
derivative works without written permission from the author is prohibited.

This software is provided by the author "as is" and any express or
implied warranties, including, but not limited to, the implied
warranties of merchantability and fitness for a particular purpose are
disclaimed.  In no event shall the author be liable for any direct,
indirect, incidental, special, exemplary, or consequential damages
(including, but not limited to, procurement of substitute goods or
services; loss of use, data, or profits; or business interruption)
however caused and on any theory of liability, whether in contract,
strict liability, or tort (including negligence or otherwise) arising
in any way out of the use of this software, even if advised of the
possibility of such damage.
</blockquote>